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Solid phase spectrophotometric microdetermination of copper

Journal Article · · Analytical Letters; (United States)
A method for the determination of microgram per liter level of copper has been developed, based on Solid-Phase Spectrophotometry (SPS). Copper reacts with bichinconinic acid to form a 1:2 anionic reddish purple of complex Cu(I), which is fixed on a dextran-type anion-exchange resin. Resin phase absorbance is measured directly and allows for the determination of copper within the range of 1-20 {mu}g.1{sup {minus}1}, using a 2,000 ml sample with an RSD of 1.7%. The method has been used in the determination of copper in natural waters.
OSTI ID:
5977639
Journal Information:
Analytical Letters; (United States), Journal Name: Analytical Letters; (United States) Vol. 24:7; ISSN ANALB; ISSN 0003-2719
Country of Publication:
United States
Language:
English